:root {
  --lanka-bg: #f8fafc;
  --lanka-surface: #ffffff;
  --lanka-surface-sunken: #f1f5f9;
  --lanka-border: #e2e8f0;
  --lanka-border-strong: #cbd5e1;
  --lanka-text: #1e293b;
  --lanka-text-muted: #64748b;
  --lanka-text-subtle: #94a3b8;
  --lanka-text-inverse: #ffffff;
  --lanka-rail-bg: #1f2327;
  --lanka-rail-hover: #2a2f34;
  --lanka-rail-active: #353b41;
  --lanka-rail-border: #2a2f34;
  --lanka-rail-text: #c8cdd2;
  --lanka-rail-text-muted: #878e96;
  --lanka-rail-text-strong: #ffffff;
  --lanka-pane-bg: #ededed;
  --lanka-pane-hover: #e1e1e1;
  --lanka-pane-active: #ffffff;
  --lanka-pane-border: #d9d9d9;
  --lanka-pane-text: #1e293b;
  --lanka-pane-text-muted: #475569;
  --lanka-success: #22c55e;
  --lanka-success-text: #15803d;
  --lanka-success-soft: #f0fdf4;
  --lanka-warning: #f59e0b;
  --lanka-warning-text: #b45309;
  --lanka-warning-soft: #fffbeb;
  --lanka-danger: #ef4444;
  --lanka-danger-text: #dc2626;
  --lanka-danger-soft: #fef2f2;
  --lanka-radius-xs: 4px;
  --lanka-radius-sm: 6px;
  --lanka-radius-md: 8px;
  --lanka-radius-lg: 12px;
  --lanka-radius-pill: 999px;
  --lanka-shadow-1: 0 1px 2px rgba(10, 14, 20, 0.06), 0 2px 4px rgba(10, 14, 20, 0.06);
  --lanka-shadow-2: 0 2px 6px rgba(10, 14, 20, 0.08), 0 8px 24px rgba(10, 14, 20, 0.1);
  --lanka-shadow-3: 0 8px 16px rgba(10, 14, 20, 0.1), 0 24px 56px rgba(10, 14, 20, 0.18);
  --lanka-motion-fast: 120ms;
  --lanka-motion-base: 200ms;
  --lanka-motion-slow: 320ms;
  --lanka-ease: cubic-bezier(0.2, 0, 0, 1);
  --lanka-font: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, sans-serif;
  --lanka-font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --tg-button: #2AABEE;
  --tg-button-hover: #1e96c8;
  --tg-link: #2481cc;
  --tg-quote: #1e6f9c;
  --tg-bubble: #ffffff;
  --tg-button-text: #ffffff;
  --tg-text: #000000;
  --tg-frame: #dddddd;
  --tg-chat-bg: #cddcc4;
  --tg-chat-warm: #c5dc8a;
  --tg-chat-cool: #7bb88e;
  --macos-close: #ff5f57;
  --macos-minimise: #febc2e;
  --macos-zoom: #28c840;
  --lanka-claude: #D97757;
}

:root {
  --lanka-node-message: #33B679;
  --lanka-node-album: #33B679;
  --lanka-node-voice: #33B679;
  --lanka-node-temporary: #33B679;
  --lanka-node-location: #33B679;
  --lanka-node-invoice_stars: #F5A623;
  --lanka-node-invoice_card: #F5A623;
  --lanka-node-reply_keyboard: #33B679;
  --lanka-node-placeholder: #33B679;
  --lanka-node-remove_keyboard: #33B679;
  --lanka-node-url: #FF9147;
  --lanka-node-web_app: #FF9147;
  --lanka-node-ask_text: #3370B6;
  --lanka-node-ask_contact: #3370B6;
  --lanka-node-ask_location: #3370B6;
  --lanka-node-ask_file: #3370B6;
  --lanka-node-ask_voice: #3370B6;
  --lanka-node-ask_date: #3370B6;
  --lanka-node-poll: #3370B6;
  --lanka-node-share: #3370B6;
  --lanka-node-list_buttons: #3370B6;
  --lanka-node-copy_text: #3370B6;
  --lanka-node-script: #FFC933;
  --lanka-node-condition: #8b5cf6;
  --lanka-node-switch: #8b5cf6;
  --lanka-node-visibility: #8b5cf6;
  --lanka-node-navigation: #8b5cf6;
  --lanka-node-delay: #6366f1;
  --lanka-node-remind: #6366f1;
  --lanka-node-typing: #6366f1;
  --lanka-node-notify: #ec4899;
  --lanka-node-announce: #ec4899;
  --lanka-node-copy_message: #ec4899;
  --lanka-node-check_subscription: #ec4899;
  --lanka-node-channel_access: #ec4899;
  --lanka-node-channel_revoke: #ec4899;
  --lanka-node-fallback: #78808F;
}

:root {
  --lanka-accent: #2AABEE;
  --lanka-accent-hover: #2596d1;
  --lanka-accent-strong: #1f7eaf;
  --lanka-accent-strong-hover: #1b6f9a;
  --lanka-accent-soft: rgba(42, 171, 238, 0.1);
  --lanka-accent-faint: rgba(42, 171, 238, 0.04);
  --lanka-accent-ring: rgba(42, 171, 238, 0.35);
  --lanka-accent-contrast: #ffffff;
}

[data-platform=telegram] {
  --lanka-accent: #2AABEE;
  --lanka-accent-hover: #2596d1;
  --lanka-accent-strong: #1f7eaf;
  --lanka-accent-strong-hover: #1b6f9a;
  --lanka-accent-soft: rgba(42, 171, 238, 0.1);
  --lanka-accent-faint: rgba(42, 171, 238, 0.04);
  --lanka-accent-ring: rgba(42, 171, 238, 0.35);
  --lanka-accent-contrast: #ffffff;
}

[data-platform=discord] {
  --lanka-accent: #5865F2;
  --lanka-accent-hover: #4d59d5;
  --lanka-accent-strong: #5865F2;
  --lanka-accent-strong-hover: #4d59d5;
  --lanka-accent-soft: rgba(88, 101, 242, 0.1);
  --lanka-accent-faint: rgba(88, 101, 242, 0.04);
  --lanka-accent-ring: rgba(88, 101, 242, 0.35);
  --lanka-accent-contrast: #ffffff;
}

[data-platform=messenger] {
  --lanka-accent: #0084FF;
  --lanka-accent-hover: #0074e0;
  --lanka-accent-strong: #0075e3;
  --lanka-accent-strong-hover: #0067c8;
  --lanka-accent-soft: rgba(0, 132, 255, 0.1);
  --lanka-accent-faint: rgba(0, 132, 255, 0.04);
  --lanka-accent-ring: rgba(0, 132, 255, 0.35);
  --lanka-accent-contrast: #ffffff;
}

[data-platform=instagram] {
  --lanka-accent: #E4405F;
  --lanka-accent-hover: #c93854;
  --lanka-accent-strong: #d63c59;
  --lanka-accent-strong-hover: #bc354e;
  --lanka-accent-soft: rgba(228, 64, 95, 0.1);
  --lanka-accent-faint: rgba(228, 64, 95, 0.04);
  --lanka-accent-ring: rgba(228, 64, 95, 0.35);
  --lanka-accent-contrast: #ffffff;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--lanka-font);
  color: var(--lanka-text);
  background: var(--lanka-bg);
  line-height: 1.5;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  height: 56px;
  background: var(--lanka-surface);
  border-bottom: 1px solid var(--lanka-border);
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--lanka-accent);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.navbar-logo:hover {
  opacity: 0.85;
}

.navbar-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.navbar-logout {
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--lanka-border);
  border-radius: var(--lanka-radius-md);
  background: transparent;
  color: var(--lanka-text-muted);
  font-size: 0.8rem;
  cursor: pointer;
}
.navbar-logout:hover {
  background: var(--lanka-bg);
  color: var(--lanka-text);
}

.main-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.landing-topbar {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 1.5rem;
  padding: 1rem 1.5rem 0;
}

.landing {
  text-align: center;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 0 1rem 2rem;
  transition: background-color 0.8s ease;
  background: linear-gradient(180deg, var(--lanka-accent-faint) 0%, var(--lanka-bg) 60%);
}

.landing-topbar {
  flex-shrink: 0;
}

.landing-hero {
  min-height: calc(100vh - 140px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.landing-logo {
  color: var(--lanka-accent);
  transition: color 0.8s ease;
}

.landing-hero h1 {
  max-width: 820px;
  font-size: 3rem;
  font-weight: 800;
  color: var(--lanka-accent);
  letter-spacing: -0.03em;
  transition: color 0.8s ease;
}

.landing-tagline {
  font-size: 1.25rem;
  color: var(--lanka-text);
  margin-top: 0.75rem;
}

.landing-platform-name {
  font-weight: 700;
  color: var(--lanka-accent);
  transition: color 0.8s ease;
}

.landing-description {
  color: var(--lanka-text-muted);
  margin: 1rem auto 2.5rem;
  max-width: 460px;
  line-height: 1.6;
}

.landing-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  background: var(--lanka-accent);
  color: white;
  border-radius: var(--lanka-radius-md);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: background var(--lanka-motion-base) var(--lanka-ease);
}
.landing-cta:hover {
  background: var(--lanka-accent-hover);
}

.landing-hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.impersonation-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 0.4rem 1rem;
  background: var(--lanka-warning-soft);
  color: var(--lanka-warning-text);
  font-size: 0.85rem;
}
.impersonation-banner__stop {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--lanka-accent);
  cursor: pointer;
  text-decoration: underline;
}

.landing-alpha-note {
  max-width: 460px;
  margin: 1rem auto 0;
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--lanka-text-muted);
}
.landing-alpha-note a {
  color: var(--lanka-accent);
}

.landing-cta--ghost {
  background: transparent;
  color: var(--lanka-accent);
  border: 1.5px solid var(--lanka-accent);
}
.landing-cta--ghost:hover {
  background: var(--lanka-accent-soft);
  color: var(--lanka-accent-hover);
}

.landing-divider {
  display: flex;
  justify-content: center;
  padding: 3.5rem 0;
}

.landing-section {
  max-width: 880px;
  margin: 0 auto;
  width: 100%;
}
.landing-section h2 {
  font-size: 1.9rem;
  font-weight: 750;
  letter-spacing: -0.02em;
  color: var(--lanka-text);
}
.landing-section__lead {
  color: var(--lanka-text-muted);
  max-width: 560px;
  margin: 0.75rem auto 2rem;
  line-height: 1.6;
}
.landing-section--final {
  padding-bottom: 2rem;
}
.landing-section--wide {
  max-width: 1240px;
}

.landing-demo {
  height: 660px;
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  text-align: left;
  border: 1px solid var(--lanka-border);
  border-radius: var(--lanka-radius-lg);
  background: var(--lanka-surface);
  overflow: hidden;
}
.landing-demo__bar {
  display: flex;
  justify-content: flex-end;
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--lanka-border);
}
.landing-demo__try {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  flex-shrink: 0;
  padding: 0.45rem 0.9rem;
  font-size: 0.9rem;
}
.landing-demo__editor {
  flex: 1;
  min-height: 0;
}

.landing-shot {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16/10;
  border: 1px solid var(--lanka-border);
  border-radius: var(--lanka-radius-lg);
  margin-bottom: 2rem;
}

.landing-points {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  text-align: left;
}
.landing-points--two {
  max-width: 640px;
  margin: 0 auto;
}

.landing-point {
  display: flex;
  gap: 1em;
  align-items: flex-start;
}
.landing-point__icon {
  flex: 0 0 auto;
  color: var(--lanka-accent);
}
.landing-point p {
  color: var(--lanka-text);
  font-size: 0.95rem;
  line-height: 1.55;
}

.landing-block-group + .landing-block-group {
  margin-top: 1.75rem;
}
.landing-block-group__title {
  margin-bottom: 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: left;
  color: var(--lanka-text-muted);
}

.landing-blocks {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 0.75rem;
}

.landing-block {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 1rem;
  background: var(--lanka-surface);
  border: 1px solid var(--lanka-border);
  border-radius: var(--lanka-radius-lg);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--lanka-text);
  text-align: left;
}
.landing-block__icon {
  flex: 0 0 auto;
  color: var(--lanka-accent);
}

.landing-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}

.landing-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.5rem;
  background: var(--lanka-surface);
  border: 1px solid var(--lanka-border);
  border-radius: var(--lanka-radius-lg);
  text-decoration: none;
  text-align: left;
  color: var(--lanka-text);
  transition: border-color var(--lanka-motion-fast) var(--lanka-ease), transform var(--lanka-motion-fast) var(--lanka-ease);
}
.landing-card:hover {
  border-color: var(--lanka-accent);
  transform: translateY(-2px);
}
.landing-card__icon {
  color: var(--lanka-accent);
}
.landing-card h3 {
  font-size: 1.05rem;
  font-weight: 650;
}
.landing-card p {
  color: var(--lanka-text-muted);
  font-size: 0.88rem;
  line-height: 1.5;
  flex: 1;
}
.landing-card__try {
  color: var(--lanka-accent);
  font-size: 0.85rem;
  font-weight: 600;
}

.landing-card--static:hover {
  border-color: var(--lanka-border);
  transform: none;
}

.landing-faq {
  display: grid;
  gap: 1rem;
  max-width: 640px;
  margin: 2rem auto 0;
}

.landing-steps {
  max-width: 480px;
  margin: 0 auto 2rem;
  padding-left: 1.5rem;
  text-align: left;
  color: var(--lanka-text-muted);
  line-height: 1.6;
}
.landing-steps li + li {
  margin-top: 0.5rem;
}

.landing-news {
  margin-top: 1rem;
  font-size: 0.95rem;
}

.landing-footer {
  margin-top: 3rem;
  font-size: 1rem;
}

.landing-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  color: var(--lanka-accent);
  font-weight: 600;
  text-decoration: none;
}
.landing-link:hover {
  color: var(--lanka-accent-hover);
  text-decoration: underline;
}

.landing-switcher-track {
  display: inline-flex;
  gap: 1rem;
  position: relative;
}
.landing-switcher-track::before, .landing-switcher-track::after {
  content: "";
  width: 10px;
  height: 10px;
  transform: rotate(45deg);
  border: 2px solid var(--lanka-accent);
}
.landing-switcher-track::before {
  background: var(--lanka-accent);
}
.landing-switcher-track::after {
  background: transparent;
}

.landing-switcher-dot {
  display: block;
  width: 4px;
  height: 4px;
  transform: rotate(45deg);
  background: var(--lanka-accent);
  opacity: 0.4;
  align-self: center;
}

body.fullwidth .main-content {
  max-width: none;
  padding: 0;
  margin: 0;
}

.timeline {
  padding: 1.5rem;
  overflow-y: auto;
  max-width: 640px;
  margin: 0 auto;
  width: 100%;
}

.timeline-node {
  margin-bottom: 1rem;
  position: relative;
  cursor: pointer;
}
.timeline-node:not(:last-child)::after {
  content: "";
  display: block;
  width: 8px;
  height: 8px;
  background: var(--lanka-accent);
  opacity: 0.3;
  transform: rotate(45deg);
  margin: 0.75rem auto 0;
}
.timeline-node.selected .timeline-bubble {
  border-color: var(--lanka-accent);
}

.timeline-bubble {
  background: var(--lanka-surface);
  border: 1px solid var(--lanka-border);
  border-radius: var(--lanka-radius-md);
  padding: 1rem;
  transition: border-color var(--lanka-motion-fast) var(--lanka-ease);
}
.timeline-bubble:hover {
  border-color: var(--lanka-border-strong);
}

.timeline-add-node {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0 1rem;
  margin-top: 0.25rem;
}
.timeline-add-node .v-button {
  --v-button-height: 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--lanka-radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--lanka-motion-fast) var(--lanka-ease);
}
.btn-primary {
  background: var(--lanka-accent);
  color: white;
}
.btn-primary:hover {
  background: var(--lanka-accent-hover);
}
.btn-ghost {
  background: transparent;
  color: var(--lanka-text-muted);
  border-color: var(--lanka-border);
}
.btn-ghost:hover {
  background: var(--lanka-bg);
}
.btn-sm {
  padding: 0.25rem 0.5rem;
  font-size: 0.8rem;
}